DC-Transformer 251E-28-SD
Converter can be used in various applications
Key figures
- ultrawide input voltage range: 16 ... 36 VDC
- very high efficiency: up to 97%
- peak input voltage: 37 VDC
- output voltage / max. output current: 28.0 VDC / 11.0 ADC
Applications
Buck-Boost DC-DC converter with internal decoupling diode, suitable as a charging converter and optimized parallel connection. It is recommended to use its successor part 257E-28-SD for new designs. Output voltages up to 48V can be realized with the new generation dc-dc power supply. Contact us at any time for more information on this DC-input battery charger.
Features
- non-isolated step up and step down converter
- very low input ripple
- continous no load and short circuit proof
- for ambient temperatures of -40°C up to +85°C
- thermal shutdown at +90°C
- for active loads, can be connected in parallel
- integrated EMI input and output filter
- no derating of power
- heatsinking metal plate
- robust design
- unipolar output voltage
- non-isolated output
Take away
Product Family
| DC-Transformer | Input | Output | Power |
|---|---|---|---|
| 251-24-SD | 12 ... 36 VDC | 24.0 VDC / 11.0 ADC | 260 W |
| 251E-28-SD | 16 ... 36 VDC | 28.0 VDC / 11.0 ADC | 300 W |
| 251L-24-SD | 10 ... 36 VDC | 24.0 VDC / 10.0 ADC | 240 W |
| 257E-24-SD | 15 ... 35 VDC | 24.0 VDC / 15.0 ADC | 360 W |
| 257E-28-SD | 15 ... 35 VDC | 28.0 VDC / 13.0 ADC | 360 W |
| 257LE-24-SD | 10 ... 35 VDC | 24.0 VDC / 13.0 ADC | 300 W |
| 257LEX-24-SD | 7 ... 35 VDC | 24.0 VDC / 8.0 ADC | 200 W |
| 258E-24 | 15 ... 58 VDC | 24.0 VDC / 13.0 ADC | 300 W |
| 258E1-27.5-On | 15 ... 58 VDC | 27.5 VDC / 8.0 ADC | 220 W |
| 258E-50 | 20 ... 63 VDC | 50.4 VDC / 10.0 ADC | 500 W |